Quality deterioration of self-phase modulated Gaussian beams

    Authors

    S. Mokhov; L. Glebov;B. Zeldovich

    Comments

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    Abbreviated Journal Title

    Laser Phys. Lett.

    Keywords

    beam quality; M2; self-phase modulation; aberration; Kerr nonlinearity; super-Gaussian; LASER-BEAMS; OPTICAL-SYSTEMS; PROPAGATION; MOMENTS; Optics; Physics, Applied

    Abstract

    The beam quality parameter M-x(2) for self-phase modulated Gaussian and super-Gaussian beams has been calculated analytically. These results can be used for experimental measurements of nonlinearities in optical materials. A super-Gaussian beam with a size comparable to a Gaussian one demonstrates much more stable behavior with propagation through Kerr media. The deteriorated beam quality parameter has also been calculated analytically in the case of higher order localized radial phase modes. The presented analysis of beam quality degradation due to localized phase aberrations is more efficient than the standard one based on polynomial aperture aberrations.

    Journal Title

    Laser Physics Letters

    Volume

    12

    Issue/Number

    1

    Publication Date

    1-1-2015

    Document Type

    Article

    Language

    English

    First Page

    6

    WOS Identifier

    WOS:000348663700004

    ISSN

    1612-2011

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